ok so i have an 04 Hemi quad cab and am beginning to start my build. i need some ideas and some help. for right now i am looking at headers, exhaust, cai, throttle body spacer, and i keep hearing alot about fastman tb but i don't even know if i can put one on my truck????? so help out guys. for my exhaust i want to gain as much as possible. I'm looking at some pacesetter header LT that couple together at 3 inches, after that i want to carry 2 1/2 pipes to true duals. Don't know if i should put an x pipe or a H pipe i don't know if it will benefit me. also will i be able to keep the stock cats????? or should i get something better???? also want a programmer all i really know of is flashpaq and bully dog..... any other ideas for a programer??????